i grew up in the suburbs of boston. and we used to go in and visit boston. and sometimes we'd go to the mta, metropolitan transit authority. it's the underground train, electrified. the train rides into two rails, and there's a third rail. and guess what the third rail is for, gang? it's 5,000 volts. that's the source of energy. now the third rail is a little higher. and what the train does, it has a little brush all the time scraping. and so it gets 5,000 volts between that brush and the rail, see? 5,000 volts runs your motor, and these things are motor-driven, electrified rails. well, we kids, we used to do something that, looking back, i'm not so proud of it. but let me tell you what we used to do. we used to get on the rail there. we'd get up in there, okay? we'd be in the platform and the trains are coming by here. now, what we would do-- and we found out that we could get the people on the platform very excited-- we jump down on the pit. and we jump down-- you're not supposed to do that. [laughter] but they got a white line here. but we would do it any